Thermometer



L. S. BRACH.

THERMOMETER.

APPLICATION FILED APR.20, I92I.

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Specification of Letters Patent,

Patented Jann. MD, 1922.

application fired' april 2o, 1921. vserial no'. 462,849.

To' all who/mt may concern Be it known that I, LEON S. Bimota,residingat Newark, in the county of Essex andA p State of New Jersey,'have invented certain new and useful improvements in Thermometers, ofwhich the following is a specification. y

' This inventionl relates toQ new and improved temperature indicatingdevices, and

\ it may be used as an ornament for a dressing table, chiffonier, or thelike.

Another` object ofthe invention is to pro vide a device of the abovecharacter, which will give a. special indication of when the room orcompartment is either too hot or too cold.

@ther objects and aims of the invention,

more orless specific than those referred to" above will be in partobvious and in part v pointed'out in the course of the followingdescription of the elements, combinations, arrangements of parts andapplications of principles, constituting the invention; and the scope ofprotection contemplated will be indicated in the appended claims.

ln the accompanying drawings, wherein ll haveillustrated preferred formsof embodiment'of my invention:

Figure l is anelevational view of one embodiment of the invention. l d2'1s a vertlcal cross-section. of

Figure Figure l.

Figure Ai'is a vertical sectional view-of another embodiment of myinvention.

, Figure 4c isa side elevational view of the embodiment of 'my inventionshown vin Figure3. i 'f i.:

Figure 5 is a view in elevation of another embodiment of my invention.

Referring-now to the drawings, wherein similar reference charactersrefer to similar parts throughout the several -views thereof, andparticularly to he embodiments of my invention shown in Figures iv to 5inclusive, the reference'numeral ldenotes a suitable base member orsupport for the device, whic is preferably ofl an ornamental character,as shown in all the figures of the drawings. rllhis base member supportsa casing 2 includ-` ing a hollow rectangularly formed member 4,

which in the present instance is provided with a removable cover portion3.

The member 4, which as shown in Figures 1, 2 and?) of the drawing,extends entirely around the casing 2 forming a part of the in- 11ersurface thereof. Fivoted intermediate the ends of the member 4 is ashaft 5, and mounted upon this shaft is a: dial member 6, which dial'member is circular in' form and has the depending flange 7 f rllhe Hang'7 of the dial 6 is provided with the indicating numbers or scale 8,which numbers are preferably positioned entirely around the Harige 7 ofthe dial. Fastened to a post 9 is 4one end of aspirally formedthermostatic member 10, the opposite end of said member being made fastto the shaft 5, said thermostatic member being preferably coiled aboutsaid shaft, as clearly shown in Figure 3 of the drawings.

formed of a-thin strip vof metal having such qualities that it isadapted to expand or Icontract in accordance with the varying degreesvof temperature, whereby said expansion or contraction of the spirallyformed member willN cause a rotated movement of. the dial. rll`hespirally formed thermostatic member` and dial being of courseso'relatively proportioned thatthevlatter will be caused tov rotate in amanner proportioned to the rising or falling of the mercury in theordinary form thermometer'.l rihe ycasing 2 is provided in its side wallas shown in Figures land 4, with an elongated substantially rectangularslot 1l, through which the numbers of the dial are visible, an arrow, asat 12, being provided, and with which the numbers on the dial as- Y.socia'te to indicate the temperature.

In Figure 1 the base member is fastened toone of the Hat sides of thecasing 2, sothat the casing stands horizontally, while in ltheembodiments of my invention shown in A Figures 13, and 5, the casing'issupported upon its curved exterior surface, so that it stands upright.lln Figure 5 the numerals off-the dial arepositioned upon the facethereof, rather than upon the iiange, so that they are exposed through acurved aperture 13.

vlln. both of the above described embodiments of my invention ll haveprovided means onthe dial or scale which will give a distinct indicationwhen the temperature of the room or compartment is above or be- Thethermostatic member l() is preferably low certain degrees oftemperature, or above or below what is generally accepted as a normaltemperature, say a temperature ranging from 50 to 8() degrees. rlhis isaccomplished by having the numerals including 50, and those below thatnumber printed in one color, and having the numerals above 80, andincluding that number, printed in ,another color, the numerals GOTand7() being printed still a different color. Thus in the present-.instancethe and 7() being printed in plain black, the numerals be'- low thatbeing printed in blue, and the numbers above 70 being printed in red.

Provided in the walls ofthe casing is a plurality of apertures 38, andalso located in the dials in all the embodiments of thel invention shownherein is a plurality of apertures 84. The object of providing theseapertures .is to permit a free access to the air in the room or.compartment, where the device is used, to the interior, of said de vice,so that the'thermostatic operating device may be at all times in directcontact, or under the dlrect influence of the room temperature. J v Itwill further .be seen that the user of the Y devic^e can quicklyascertain whether the drawing shall be Ainterpreted asillustrative roomorI compartment is above or below what is generally accepted as thenormal temperature.

It will accordingly be seen that l have prof vided a construction welladapted to attain, among others, all the ends and objects above pointedout, in a simple yet efficient manner;

As many changes could made in this construction without depart; g fromthe scope of the following claims, it is intended that all mattercontained in the above description or shown in thel accompanyng only andnot in a limiting sense.

Having thus described my invention what li claim as new and desire tosecure by Letters Patent is:

1. ln(a device of the class described, in combination, a casing providedwith an'observation opening, a rotatable dial havin@ its axis journaledin opposed walls of said casing, a thermostaticmember connected 'withthe axis of said dial adapted to operate thel same, said dial beingexposed through said casing, and said easing and said dial beingprovided with a plurality of apertures so that air may freely circulatetherethrough.

2. ln a device 'of the class described, in y combination, a casing, ashaft, bearing points for said shaft in opposed walls of said casing, adial mounted upon said shaft, a thermostatic member having one endconnected to said' shaft, and the opposite end connected to a fixedsupport, said dial and said thermostatic member being located'intermediate the points of' bearing of said shaft. .4

3. ln a device of the lclass described, in combination, a casing havingopposed walls, a shaft rotatably mounted-in the opposed walls of saidcasing, a thermostatic member encirclingsaid shaft, a dial mounted uponsaid shaft, said dialY having a face portion which overhangs a port-ionof said shaft and partially encloses said thermostatic mem-- ber, andSaid thermostatic m'ember'having' one end/ thereof attachedto aixedsupport 75 and its opposite end lattached to the axis of said dial.

4. In a device of the class described, in combination, a casing, a shaftrotatably sup` ported intermediate opposed walls of said casing, acylindrically. formed member fixedly mounted upon said shaft, a,thermostatic member encircling said'shaft and havingone end attached toa fixed support, and its opposite end to said shaft, said cylinidrically formed member having a down-l wardly extending flange whichencircles the upper end of said shaft to partially enclosesaidthermostatic member, and a scale formed upon the outer face of saidflange. `90

5. A device of the class described, in com-` f bination, a casing havingopposed walls, a shaft journa-lled in said walls, a cylindrically formedrotatable member ythrough which said shaft extends, and upon which it isfixed against relative rotative movement,A a thermost-atic memberencircling said shaft and having one end thereof attached toa fixedsupport and its opposite end attached, to said shaft, said cylindricallyformed 10@ member having a laterally extending flange, and a scaleformed on the outer face ofsaid flange.l

ln testimony whereof l affix my signature in the presence of two,witnesses.

Laon s-BRAGH.

